docs: def is_alive(self, container: Container) -> bool:
          """
          Determines whether or not a given container is still alive.
          """
          uid = container.uid
          r = self.__api.get('containers/{}/alive'.format(uid))
  
          if r.status_code == 200:
              return r.json()
  
          if r.status_code == 404:
              raise KeyError("no container found with given UID: {}".format(uid))
  
          self.__api.handle_erroneous_response(r)